Everyone thinks they know what happened when figure skater Nancy Kerrigan was attacked and injured right before the 1994 Olympics.

Turns out, not even the people involved really knew what was going on, least of all volatile opponent Tonya Harding.

Supposedly.

Based on ÔÇÿirony-free, wildly contradictoryÔÇÖ interviews conducted by director Craig Gillespie, I, Tonya is a darkly humorous biopic that just keeps throwing punches. Literally.

The glitz and sparkle of both the ice skating world and first love are increasingly overshadowed by dark obsession and piercing satire. And I defy anyone to leave the theatre without feeling totally consumed by this film.

Margot Robbie is a wonder, almost unrecognisable she disappears so totally into her role. Alison Janney is callous, horrifying and always brilliant and Sebastian Stan is a million miles away from MarvelÔÇÖs Winter Soldier here.

Not just a film about sport, it is about love, hate and the way that we remain a product of our childhood, no matter how hard we try to get away from it.

I, Tonya may not be for the fair-hearted, but I encourage you to take a deep breath and triple Axel into it anyway.

By Abbie Rands